Function esp_idf_hal::sys::esp_aes_gcm_starts

source ยท 
pub unsafe extern "C" fn esp_aes_gcm_starts(
    ctx: *mut esp_gcm_context,
    mode: i32,
    iv: *const u8,
    iv_len: usize,
) -> i32
Expand description

\brief This function starts a GCM encryption or decryption operation.

\param ctx The GCM context. This must be initialized. \param mode The operation to perform: #MBEDTLS_GCM_ENCRYPT or #MBEDTLS_GCM_DECRYPT. \param iv The initialization vector. This must be a readable buffer of at least \p iv_len Bytes. \param iv_len The length of the IV.

\return \c 0 on success.